Pressure recorder, range 0-60 mbar, made by Sigma Instrument Co Ltd, date c1979. Maker's no.7900. In lockable glazed wooden cabinet. (Tingley catalogue No. 318). Pressure recorder circa 1979
Holmes-Connersville positive displacement gas meter, 1955. Holmes-Connersville positive displacement gas meter 1955
Sieger explosive gas meter from Howards Chemical Works, Ilford Sieger explosive gas meter from Howards Chemical Works
Gas meter, green painted case, made by Willey & Co. Ltd., London & Exeter. Large calibrated dial with large pointer measuring one cubic foot by 0.01 intervals, 4 smaller measuring units, 10s, 100s, and 1000s of cubic feet, two side handles. Glass front is missing, dial broken off, four adjustable levelling feet. Gas meter circa 1900